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diff --git a/WebCore/editing/EditingStyle.h b/WebCore/editing/EditingStyle.h
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+/*
+ * Copyright (C) 2010 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef EditingStyle_h
+#define EditingStyle_h
+
+#include "CSSMutableStyleDeclaration.h"
+#include "Document.h"
+#include "Position.h"
+
+namespace WebCore {
+
+class CSSStyleDeclaration;
+class CSSComputedStyleDeclaration;
+
+class EditingStyle : public RefCounted<EditingStyle> {
+public:
+
+    static PassRefPtr<EditingStyle> create()
+    {
+        return adoptRef(new EditingStyle());
+    }
+
+    static PassRefPtr<EditingStyle> create(Node* node)
+    {
+        return adoptRef(new EditingStyle(node));
+    }
+
+    static PassRefPtr<EditingStyle> create(const Position& position)
+    {
+        return adoptRef(new EditingStyle(position));
+    }
+
+    static PassRefPtr<EditingStyle> create(const CSSStyleDeclaration* style)
+    {
+        return adoptRef(new EditingStyle(style));
+    }
+
+    CSSMutableStyleDeclaration* style() { return m_mutableStyle.get(); }
+    bool isEmpty() const;
+    void setStyle(PassRefPtr<CSSMutableStyleDeclaration>);
+    void clear();
+    void removeBlockProperties();
+    void removeStyleAddedByNode(Node* node);
+    void removeStyleConflictingWithStyleOfNode(Node* node);
+    void removeNonEditingProperties();
+    void prepareToApplyAt(const Position&);
+
+private:
+    EditingStyle();
+    EditingStyle(Node*);
+    EditingStyle(const Position&);
+    EditingStyle(const CSSStyleDeclaration*);
+    void init(Node*);
+    void removeTextFillAndStrokeColorsIfNeeded(RenderStyle*);
+    void replaceFontSizeByKeywordIfPossible(RenderStyle*, CSSComputedStyleDeclaration*);
+
+    RefPtr<CSSMutableStyleDeclaration> m_mutableStyle;
+    bool m_shouldUseFixedDefaultFontSize;
+};
+
+PassRefPtr<EditingStyle> editingStyleIncludingTypingStyle(const Position&);
+    
+} // namespace WebCore
+
+#endif // EditingStyle_h